The fact that Nvidia would present two or even three new Geforce GTX 200 chips in 55-nm-technique within the Comsumer Electronics Show (CES) on 8. of January 2009, was already clear from the appropriate rumour sites of the last days.
Now both the collegues from Expreview and from it168 come up with the supposed final specifications of GTX 285 and GTX 295 - including the clock frequencies.

Along with the present information Nvidia raises the GTX 285's clock frequencies at chip, shader and memory about 7.6, 13.9 and 12.2 per cent accross from the GTX 280, which should end up in approx. 10 per cent better performance in praxis - as last conjectured.
A fact to notice is the GTX 285's clock frequency of the shader domain with 1476 MHz. Up to now this frequency domain in the GT200-architecture was only controllable in 54-MHz-steps - 1458 und 1512 MHz would have been possible until now. Also, it seems a bit strange that the memory features the same clock frequency as the shader clock of the old and the new GTX 260, namely 1242 MHz. Though this indication is not impossible, because 0.8 ns fast GDDR3 memory is specified with up to 1250 MHz - but it could be a simple typo, too.

The dual graphic card GTX 295 appears with exactly the same clock frequencies as the old and new Geforce GTX 260 graphic-cards (576/1242/999 MHz), except that it now has either two of these or each 240 shader- and 80 texture-units instead of 216/192 shader- and 72/64 texture-units.
The chip frequency/shader frequency relation is at usual 2.15 of the GTX 295, while the ratio of the GTX 285 is already 2.28.
First tests on it168 attribute the GTX 295 an about 20 per cent higher gaming performance than the HD 4870 X2 - these results where gathered under Call of Duty 5, Dead Space, Fallout 3, Far Cry 2 and Left 4 Dead with system settings that were not further named.

At the same time the table on hand affirms TDP-information that are swirling around for a couple of days: The Geforce GTX 295 seems to be determined with 183 Watt and, with that, only 1 Watt above the niveau of the GTX 260 graphic cards. Also the 289 Watt TDP of the GTX 295 are acceptable and located at HD 4870 X2 level - it168 again found clear advantages for it in the measurements.
If the specifications are already final ones is not sure yet. They at least do not sound absurd or impossible, which is why we can trust them for now.

News-Kommentare

2) eXEC: (16.12.2008 - 15:38 Uhr)

Ich würd aber gleich noch zusätzlich das ganze als neue Generation preisen, damit die Kunden meinen, nooooch schneller.
Abseits dessen, find ich die GTX-285 schon interessant. Allerdings wiederstrebt es mir, eine HighEnd Grafikarte ohne DX10.1 zu kaufen...

3) Cartman: (16.12.2008 - 16:32 Uhr)

eXEC: Was bringt dir DX 10.1 wenn ende 2009 schon DX 11 kommen soll?^^

4) (th): (16.12.2008 - 17:46 Uhr)

Dann wird Ati halt wieder im Mainstream bereich herrschen wie schon zuvor...
Warum ist der TDP so gut? 55nm? Nicht schlecht, allerdings wahrscheinlich fuer die Kauefer nicht relevant.

5) KonKorT: (16.12.2008 - 17:55 Uhr)

Ja, nach dem dritten Respin im 55-nm-Prozess scheint man es einigermaßen hinbekommen zu haben.

6) Weiser: (17.12.2008 - 14:58 Uhr)

Könnte es eigentlich sein, dass es sich bei der für die GTX 285 angegebene Shadertaktung um einen bösen Zahlendreher handelt: Wie wärs mit, um bei 54 MHz-Schritten zu bleiben, (ich weiß, wie von mir gewohnt, etwas utopisch ) 1674 statt 1476 MHz (4 und 6 vertauscht)???